Roasting Definition in Chemistry

Roasting is the name given to the heating of a metal sulfide ore.
Roasting is the name given to the heating of a metal sulfide ore. Falcor / Getty Images
By
Anne Marie Helmenstine, Ph.D.
Anne Marie Helmenstine, Ph.D.
Chemistry Expert
  • Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
  • B.A., Physics and Mathematics, Hastings College
Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.
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Updated on September 09, 2019
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Roasting Definition: Roasting is a process in metallurgy in which a sulfide ore is heated in air. The process may convert a metal sulfide to a metal oxide or to a free metal.
Example: Roasting ZnS may yield ZnO; roasting HgS may yield free Hg metal.

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Helmenstine, Anne Marie, Ph.D. "Roasting Definition in Chemistry." ThoughtCo, Aug. 27, 2020, thoughtco.com/definition-of-roasting-in-chemistry-604643. Helmenstine, Anne Marie, Ph.D. (2020, August 27). Roasting Definition in Chemistry. Retrieved from https://www.thoughtco.com/definition-of-roasting-in-chemistry-604643 Helmenstine, Anne Marie, Ph.D. "Roasting Definition in Chemistry." ThoughtCo. https://www.thoughtco.com/definition-of-roasting-in-chemistry-604643 (accessed April 20, 2024).